Modelling an Unhealthy Behaviour Index among School-Going Adolescents in Timor-Leste: A Two-Part Approach IntroductionThe burden of unhealthy behaviours in the adolescent population is a worldwide public health concern. This study develops an unhealthy behaviour index and examines its associated factors within a large sample of adolescents from Timor-Leste.MethodsThe data of 3455 adolescents from a nationally representative sample were analysed. The unhealthy behaviour index was developed based on the number of involvements in unhealthy behaviours (consumption of soft drink and fast food, low intake of fruit and vegetables, physical inactivity, smoking, alcohol drinking, illicit drug use). A two-part model was applied to assess the influences of demographic, environmental, personal and parental factors on the participation decisions of unhealthy behaviours and the unhealthy behaviour index.ResultsParental closeness was associated with participation decisions. Age, being involved in physical fights, suicide attempt and parental connectedness were correlated with unhealthy behaviour index. Bullying victimisation and truancy affected both participation and index. There were interaction effects of gender and loneliness on the unhealthy behaviour index.ConclusionsAdolescents who engage in unhealthy behaviours are more likely to be younger, be involved in physical fights, experience bullying, attempt suicide, play truant and have no parental closeness and connectedness. The specific policy recommendations include discouraging male adolescents who do not encounter loneliness as well as those in lower-secondary education from indulging in unhealthy lifestyles. Additionally, parents should collaborate with educators on monitoring adolescents’ environmental stressors, mental health condition and class attendance, and be prepared to provide support in a timely manner.

Introduction: The rising prevalence of human immunodeficiency virus (HIV) among people who inject drugs is a major public health issue. This study intends to explore education and demographic correlates of use of condoms among male drug users in Malaysia. Methods: Data were extracted from the Integrated Biological and Behavioral Surveillance Survey 2017. Pearson’s chi-square tests and a logistic regression were used to examine the associations between condom use and education, and demographic factors. Results: Only a small proportion of drug users used condoms (25.7%). Educational backgrounds, age, ethnicity and marital status were associated with condom use. The likelihood of using condoms was lower among less educated drug users (aOR: 0.308–0.339). There was an interaction effect of education and age on condom use (aOR: 0.116–0.308). Chinese (aOR: 3.117) and those of other ethnicities (aOR: 2.934) were more likely to use condoms when compared with Malays. Being married (aOR: 0.291) or divorced/widowed (aOR: 0.346) was associated with reduced odds of using condoms. Conclusion: Education and demographic factors play an important role in influencing the decisions of Malaysian drug users to use condoms. Therefore, HIV-preventive measures targeting drug users could benefit by paying special attention to these factors.

KNOWLEDGE OF HIV TRANSMISSION AND ITS ASSOCIATION WITH SOCIODEMOGRAPHIC FACTORS AMONG MALE DRUG USERS IN MALAYSIA: FINDINGS FROM THE INTEGRATED BIOLOGICAL AND BEHAVIORAL SURVEILLANCE SURVEY (IBBS) 2017 Controlling the spread of HIV requires essential knowledge. This study explores how sociodemographic factors relate to HIV transmission knowledge among male drug users in Malaysia. This study utilised cross-sectional data from the Integrated Biological and Behavioral Surveillance Survey (IBBS) 2017 (n = 1,413). An ordered probit regression was used to evaluate parameters influencing the probabilities of having low-, middle- and high-level knowledge of HIV transmission. Almost half of drug users had low- and middle-level knowledge of HIV transmission. The likelihood of possessing low- and middle-level knowledge about HIV transmission were 2.1%–8.3% lower among drug users aged 30–49 than those aged ≥50. Drug users with secondary- and tertiary-level education were 5.8%–14.9% more likely to possess high-level knowledge about HIV transmission compared to individuals with primary-level education. The odds of possessing high-level knowledge of HIV transmission was 6.3% higher among divorced/widowed drug users, while it was 23%–32.9% lower among non-Malays when compared with others. In conclusion, drug users are more likely to have poor knowledge about HIV transmission if they are older, less educated, non-Malays and single. Future HIV-control initiatives should give particular consideration to the populations with these sociodemographic traits.

Introduction: Adolescents are the future generation, and their support for smoke-free policies might create momentum for future stringent smoke-free initiatives. This study aimed to determine the levels and factors associated with support for smoking in public areas among Malaysian school-going adolescents aged 10-19 years Methods: The data were derived from the Tobacco and E-cigarettes among adolescents in Malaysia (TECMA), which employed the cross-sectional study design and multistage sampling to select the representative samples of school-going adolescents. Data was obtained through self-administered of pre-validated questionnaire. Descriptive study, cross-tabulation and multivariable analysis were used for analysis Conclusion The level of support for smoke-free initiative in public areas was high among youths in Malaysia, and this might offer promising prospects to expand the non-smoking areas to more public areas in the future.

Introduction: Multitude studies have shown perception is an integral factor associated with smoking, However, no such tool was available in Malay language. In this study, we established a Bahasa Malaysia version of PTSQ (BM-PTSQ) and tested the validity and reliability among secondary school adolescents. Methods: The English version of PTSQ originally consists of 12 items. It was translated into Bahasa Malaysia and back-translated again into English to check for consistency. After face validity (face-to-face query) was determined among 20 secondary school adolescents, only 10 items were included in the survey. Construct validity was established from 407 school adolescents through random selection in the same locality. More than 60% of the respondents were female, a majority (67.3%) were schooling in rural areas. Then, the reliability of the questionnaire was determined with Cronbach's alpha. Results: EFA has grouped PTSQ into two components, they are associated with either knowledge or attitude towards smoking. The variance and Cronbach's alpha for the first and second component were 38.24% and 0.861 (7 items) and 21.62% and 0.661 (3 items) respectively. Conclusion The PTSQ showed good validity and reliability for measurement of perception in smoking among school adolescents in Malaysia, thus this is a viable measurement tool. More importantly this study shows an urgent need to improve the smoking education among adolescents in Malaysia.

Introduction: The prevalence of e-cigarette smoking is increasing. Many people still have a poor understanding of the risks of e-cigarettes. The purpose of this study is to examine sociodemographic factors associated with knowledge about e-cigarettes with a focus on the perception that e-cigarettes are less dangerous than regular cigarettes. Methods: Multivariable logistic regressions are utilised to estimate the effects of sociodemographic factors on the likelihood of having the perception that e-cigarettes are less dangerous than regular cigarettes. These regressions are stratified by ethnic groups. A Malaysian nationwide survey that consists of a large sample size (n = 4176) is used for secondary analysis. Results: Age, gender and educational level are associated with the perception about e-cigarettes. Older individuals are less likely to think that e-cigarettes are less dangerous than regular cigarettes compared with younger individuals. Males are more likely to have the perception that e-cigarettes are less dangerous than regular cigarettes relative to females. Having primary or secondary educational level rather than tertiary educational level is associated with a reduced likelihood of having the perception that e-cigarettes are less dangerous than regular cigarettes. Conclusions Sociodemographic factors play an important role in determining the perception about e-cigarettes. Nationwide policies directed toward improving knowledge about e-cigarettes among individuals who think that e-cigarettes are less dangerous than regular cigarettes may be effective in lowering the risk of suffering from the currently unknown long-term negative effect of e-cigarettes.

Introduction: The objective of the present study was to investigate the influences of sociodemographic factors on consumption of high-sodium foods among adults in Malaysia. Methods: Data were extracted from the Malaysian Community Salt Survey (MyCoSS) (n=1046). A seemingly unrelated regression (SUR) was utilised to assess factors associated with the number of servings of high-sodium foods (nasi lemak, roti canai, fried rice, fried noodles, and fried vermicelli) consumed per week. The independent variables were sociodemographic factors. Results: Younger individuals consumed more high-sodium foods than their older counterparts. Adults with secondary level education consumed more high-sodium foods compared with those with tertiary level education. Consumption of high-sodium foods was higher among males and Malays compared to females and non-Malays. Conclusion: Consumption of high-sodium foods was common in the population. Sociodemographic factors, such as age, education level, gender, and ethnicity, play an important role in influencing the decisions of people to consume high-sodium foods.

The study aims to determine the relationship of attitude and social-norm with intention to smokein the future among non-smoking youth. Data were derived from astudy on smoking among form four students in selected secondary school in Peninsular Malaysia, which utilised apre-validated questionnaire to obtain data from the selected respondents. Descriptive statistics and structural equation modelling (SEM) were used in data analysis. The study revealed independentvariables accounted for 22.6% of the variance inintention to initiate smoking and the model had good fit. Asignificant relationship was observed between subjective norm and intention to initiate smoking (R=0.46). The study revealed that attitude and social norm substantially explained intention to smoke among non-smoking adolescents. Future measures should concentrate oncorrectingthe subjective norms to reduce intentionto initiate smokingamong non-smoking youth.

Studies have shown that parents and peers are among the dominant factors that contribute to smoking initiation among non-smoking adolescents. The paucity of this information in Malaysia warrants a longitudinal study to determine the actual factors associated smoking initiation. The study aims to address the gaps in our knowledge on the factors that associated with smoking initiation among non-smoking school-going adolescents. We carried out a longitudinal study among non-smoking secondary school-going adolescents in Kota Tinggi district, Johor. A representative sample of 1682 was selected via multi-stage sampling and respondents were followed-up for a period of one year. A pre-validated questionnaire was used to collect data from the selected respondents and multivariable logistic regression was employed to determine the factors associated with smoking initiation among non-smoking school-going adolescents. Approximately 1 in 10 non-smoking school-going adolescents-initiated smoking at the end of follow-up. Having peers and a father who smokes were significantly associated with smoking in univariate analysis, similarly relationship was also observed in multivariable analysis between parents who smoked with smoking initiation after the effect of other independent variables were controlled (Adjusted relative risk: 1.81, 95% CI 1.06-2.95). The study revealed that parental influence was more dominant than peer influence with regards to smoking initiation. Therefore, intervention programmes should involve parents/guardians to enhance their chances of success and reduce the incidence of smoking among non-smoking school-going adolescents.

The present study examines age and education determinants of consumption of medical care using Malaysian data. The present study offers a better understanding of the effects of age and education on medical care and assists policy makers in developing more effective intervention measures to improve population health. A nationally representative data with a large sample size (n = 14838) was used for analyses. Several important findings are noteworthy. First, age and education are positively associated with consumption of medical care. Second, the impact of education on medical care varies across age. Third, there is no diminishing marginal effect of education on medical care. Findings of the present study suggest that age and education play an important role in determining consumption of medical care. When designing policies to improve population health, consideration should be given to the effects of age and education factors on consumption of medical care. It is important for policy makers to understand which age group and education level of people are more or less likely to use medical care.